Date: Sat, 4 Oct 2008 10:51:59 -0000 (UTC)
Subject: 3.5m Night Log 20081003
From: "Gabrelle Saurage"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Friday, October 3, 2008
                                                         ACTUAL
 ASTRONOMER        OBSERVER(S)        INSTRUMENT      START  FINISH
-------------------------------------------------------------------
 G.Wallerstein     J.Hughes           SPICAM          17:30  04:40
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
---------------------------------------------------------------------
 UW07/R     19:38  06:07    0    0    0    0   8.9  1.6   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
Observing Specialists: G.Saurage
AzVeloScale: 577.9, 581.9; 579.9 (no change)
AltVelScale: -631.2, -630.9; -631.0 (changed to -631)
While on a standard, a line showed up across the upper right corner in SPICAM images
(see science image 0070+). After some investigation I isolated it to be an internal
wire in the instrument. It is one of the wires just outside the filter wheel leading
to the wheel connections. It hung down when the instrument was at a physical
rotation of about 35 degrees. I tucked it back in as good as possible and took test
images at various rotations and it seems to be clear now.
We were open but fighting with clouds all night. With guide stars coming and going,
very little useful data was obtained :(
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------
20:25 SPICAM    -245(285) 101  49  11.7 13.5 12.6 12.3 12.0 Strom y  1.11
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    64    30     10   266    (W)    950 mstly cldy   none
     17:00    57    27      7   252  (WSW)    779 mstly cldy   none
     18:00    55    28      8   244  (WSW)    801 mstly cldy   none
     19:00    54    27      6   201  (SSW)    893 mstly cldy   none
     20:00    54    26     12   209  (SSW)    892 mstly cldy   none
     21:00    53    29     12   211  (SSW)   1052 mstly cldy   none
     22:00    53    33     18   217   (SW)   1167 mstly cldy   none
     23:00    52    33     12   206  (SSW)   1298 mstly cldy   none
     00:00    52    32     11   224   (SW)   1195 mstly cldy   none
     01:00    52    34     10   249  (WSW)   1218 mstly cldy   none
     02:00    51    36     11   225   (SW)   1202 mstly cldy   none
     03:00    50    37     14   223   (SW)   1026  ptly cldy   none
     04:00    50    36     11   255  (WSW)    892   cloudy     none
     Note: the wind was coming from the azimuth listed.
     The convention used is north=0 degrees, east=90 degrees.
     The dust count is particles > 1u per 0.1 cubic feet.
                              TELESCOPE STATUS
      Telescope drives operational. Current TCC version: 2.9.1
      Current TUI version: TUI 1.5